Demountable rim for wheels.



R. C. KNOWLES.

DBMOUNTABLE RIM POR WHEELS.

APPLICATION FILED AUG.7,1913.

1,098,040. Patented May 26,1914.

2 SHEETS-SHEET l.

Gwmmw /foscoe CfoW/es.

M MM- MM R. C. KNOWLES.

DEMOUNTABLE RIM FOR WHEELS.

APPLICATION FILED AUG. 7, 1913.

1,098,040. l v PmenneaMayQGJQlll.

` 2 SHEETS-SHEET z.

zaal/@6%. @2, @ma/M 1 M noscoE c. KNowLEs, vE EMPIRE, ALABAMA.

DEMOUNTABLE EIM Fon, WHEELS.

Specification of Letters Patent.

Patented May 2e, 1914..

Application led August 7, 1913. Serial No. 783,555.

To all 'whom #may concer-n.'

Be it known that I, RoscoE C. KNowLEs, a citizen'of the United States of America, residing at Empire, in the county of Walker 5 and State of Alabama.I have invented certain new and useful Improvements 1n Demountable Rims for lVheels, of which the following is a specification. j u

My invention relates to vehicle wheel rims which comprise an inner rim made fast to the Wheel felly and an outer dexnountable tire carrying rim which is slipped over the inner rim and made fast thereon by a locking mechanism which can be quickly and easily manipulated.

One object ofk my invention is to simplify and perfect the locking mechanism for the demo-untable rim and to this end thatlrim'is provided With'lips or tongues which interlock with the inner rim and overhang the side of the same, anda wedge locking means, preferably in the form of a ring, is held adjustably to the side of the felly and adapt-- ed to be adjusted so that the wedges engage between the overhanging lips and the inner rim and hold the demountable rim rigidly in place. 1- l A further object of my invention is to devise a single simple means for adjusting the Wedge-bearing locking ring and this I accomplish by means of a nut which is adjustable on a screw rigidly connected to the felly, the nut being interlocked with portions of the locking ring 4so that its adjustment rotates the ring. Y

My invention further comprises novel means for interlocking .thev rim sections against relative rotary movement and the several details of construction and arrangements of parts, all of which are hereinafter more particularly described. and claimed, reference being had to the 'accompanying drawings which illustrate the preferred embodiment of my invention, and in which Figure 1 is a partial side elevation looking ,from the inner side of the wheel and showving my improvedV demountable rimuin operatmgapos'ition. ,Fig 2 is a cross-sectional View takenon the line 2-2 of Fig. 1. Fig.

50 3 is a similarugiew taken on they line. 3-3

of Fig. 1. Fig.4, is a detail view ofthe' adjusting means foi-fthe locking ring. Figs. 5, 6, 7 and Stare Epartial perspectiveviews respectively@ thewedoe loekingring, in-

ner rimyouterfdexnounta lerim, and detachj able tire ring. Fig. 9 is al detail side elevation of the wedge locking ring.

Similar reference numerals refer to similar parts throughout the drawings.

I have illustrated my invention in conncc- 6o tion with any standard type of wheel coinprising a felly 1, spokes 2, and a hub 3 which is mounted on a shaft or axle 4. I mount on the fellythe inner rim section 5 which is provided around one peripheral edge with an inturned annular flange 6 and along its opposite `edge with an out-turned annular shoulder 7. The top face 8 of this shoulder 7 is beveled on an incline rising from the center of the felly and the shoulder has notches 9 which are out therethrough at intervals and extend down flush with the outer face of the rim. The rim 5 has an annular beveled face l0 surrounding its peripheral edge adjacent to the flange 6, which flange overlaps the outer side of the 4felly Vwhile shoulder 7 stands flush with the inner side thereof. The rim 5 is held against rotation on the felly by a series of screws'or bolts 11, The outer demountable rim 12, which holds the tire, is made wider than the rim and is provided along one marginal edge with an annular upturned lip 13 and along the other edge with a groove 14 in which asplit fastening ring 15 is adapted to be seated. Tire re- 85 tainingrings 16 are adapted to engage thelip 13 and ring 15 and hold the tire 17 in place on rim 12. The rim 12 is provided on its underface with an annular shoulder 18the underface of which is beveled to correspond v with the bevel of the face 10 on rim 5. Near its other side the rim 12 is provided with. an annular shoulder having a beveled underface which is adapted to engage and rest on.

the beveled face 8 on the rim 5. At inter- 95 vals there project below this shoulder 19 lugs 20, there being one for each slot 9 and these lugs are adapted to fit into the slots 9 and thereby interlock the rims against relative rotary movement. In transverse alinement with each shoulder 20 and spaced therefrom is a depending lip 21 which is integral with rim 12 and is also adapted to be passed lat.

-erally through a notch 9 on the shoulder 7 when the rims are being assembled and which lips 21'then stand spaced from the inner side'tace of the fell y and shoulder T.

The locking means for holding the rimsv assembled comprise a locking ring 22, see Fig. 9, which is provided at intervals withfll ripheral notches 25- and to one side of each notch 25 and projecting laterally from the ring is a wedge 26.` The width of the notches 25 correspond with that of notches 9. Thev ring is provided along its inner peripheral edge with two spaced -arms 2.7 which are disposed radially and near their free ends are bent outwardly on a curve, as seen in Fig. 3. These arms 27 are adapted to receive between them a. nut 28 l which is adjustable on a screw 29 about which the inner ends of the arms are bent. This screw is preferably constructed as shown in Fig. 4 and is provided with an integral threaded shank 30 at one end which is bent at right angles to the body of the screw. The rounded and unthreaded outer end of screw 29 is provided withv an opening to receive a screw 31 which is passed down through said opening and through a washer 32, the upper portion of which is made thick and shaped to tit about the rounded end of screw 29. The screw shank 30 which has an offset 33 equivalent to the washer 32, is screwed into the lower outerv corner of the felly at an upward inclination to give it the maximum purchase inthe felly.. After the shank 30 is screwed home, the `screw 29 is turned in linewith the felly, nut 28 is screwed onto 29, washer 32 is slipped junder the outer end of 29, and the screw 31 passed down through 29 and 32and-screwed into the Vfelly. In order to reduce the friction of the ring 22 as it is adjusted, the latter has its inner face cut away so as to leave top and bottom bearing faces 34 and 35 which alone engage the felly and rim 5 In operation, assuming the rim 5 and the locking ring 22 to have been mounted on the wheel felly in the manner described, the

nut 28 is turned by hand or a suitable implement and as it 1s adjusted along the screw 29, it engages one vor the otherof the arms 27 and (causes the ring to rotate. This adjustment continues until the notches 25 in the locking ring register with the notches 9 in the shoulder 7 of the inner rim. The tire having been 1n unted on the rim 12 the latter is ready to l e mounted and this is done by holding the rim 12 in vertical posi-` tion and moving ititoward the car with its shoulders 20 resting irst'on the beveled face 10 of the rim 5 and then slipping onto its intermediate body portion. The rim 12 is then turned until its alining pairs of shoulders 20 and lips 21 come opposite the notches 9 and 25, whereupon the outer rim is shoved home, bringing its lips 21 into position beyond the outside face of the lockingring and in positionto be vengaged by its wedges When in this position, the rim 12 is supported by the engagement of its similarly beveled shoulders 18 and 19 with the correspondingly beveled faces 8 and 10 of the rim 5. The operator now turns the nut 28 so as to adjust it to the left (Fig. 1) and as the locking ring is rotated counterclockwise, its wedges 26are gradually forced in between the inner rim and the lips 21 of the outer rim, thereby forcing the latter rim to its extreme inner position and holding it tightly in place on the inner rim.

'lhe beveled engaging faces of the* two rims in connection with the wedge locking ring gives a connection which will not rattle. By spacing the shoulders 18 and 19 so that the intermediateportions of the two rims are not in engagement, the frictional resistance of the rims when separated after they have been in duced.

What I claimas new and desire to secure by Letters Patent, is

1. In a tire fastening means, an innerriln having a periplieralnotched shoulder near a side edge thereof, an outer and wider demountable rim which fits snugly over said inner rim and has inwardly disposed shoulders which fit .into the notches in the shoulder on the inner rim and interlock the rims inwardly disposed lips on said demountable rim adapted to be passed Lthrough said notches in advance of said shoulders and to stand spaced from the inside edge of the inner rim when the two rims are assembled, in combination with adjustable wedge locking means adapted to be interposed between said lips and the inner rim to lock the demountable rim in engagement with the inner rim, substantially as described.

2. In a tire fastening means, an inner rim and means to attach it rigidly to a wheel, a

notched raised beveled shoulder surround' ing the inner side of said-rim, an outer delong use is materially resaid `inner rim and shoulder and having at one side inwardly disposed lips which pass through said'notches as the demountablerim is adjusted into operating position, projections on the demountable rim-which t into said notches and interlock Ithe rims against turning relatively a wedge-bearing ring, and means to adjust it to insert its wedges between the inner rim and said lips on the demountable rim to interlock the rims against lateral movement, substantially as described.

3. In combination, a wheel felly, an inner metal rim fast thereon and having yabout its outer periphery a beveled face at one side and a notched shoulder at'the other side having its out-turned face also beveled, an outer demountable rim having about its inner periphery two spaced annular beveled faces, one 'of which is on a shoulder and which are adapted to engage and rest on seid Vbeveled iaces'ottheinner rim, sind -sshoulders :on the n outer yrim rwlliich engage in; the notches@ ein?, thefsholllder foffthe inner' rim,T lips on the 'outer rim in transverseoline-V `ment each Awith Vsholderfiafnd adapted a to' .,pass throug'glraI Anotclrmrd overluvng the inner side ofi thei innerfrim,1w'ring ndjaustably con- 'nected to; the l. inner *side :of L the lffellyf and 1 tenedvv to theE inner 'sidelines f'thefelly,zaand' means 5to Iladjjifust f. s-ifd y'ring .vond efforce its "wedges between.' the rontenproj ection of. each@ 1 plir-andi thef inner i-i-imeand felly. 55. "In combinationzea vlWheel ffelly fhavingflar demountnble: rim@ thereon;k interlocking` proj ections which 'hold `the .fdemou-ntable f krim against arotati'on on Athe "Wheel .'felly, iol-idr ymeans to! hold the-.demountablef 4rirnagainst lateral ydisengagement 'comprising inburne'd vg projections* oni the v demountable #rim I Whichoverhang the inner side .'face ylof the felly,

. a I locking fiing :adjustobly 1 yconnected toi thef f innerH side "face foftheifellyiandlhavingi twoE spaced farms, a *screw :which :extends along; the iifelly, n nut ndjeustble on f-f'said .fscrew :and engoged non each side by vrse-id farms which :extend beI-o'w 'end #engage the 1inner which are =srdaptedIto' be'v interposed` between i the felly 'fand Ysaid projections on gvthe demountblea rim, 'snbst:antilly:asl described.

16. In conbnation,lafWheelf"fe1ly,:zant inner metal, rim "ast` thereon land? 'bowingv @a'raised ynotched vshoulder fatitsl inner 4side-jamil" affbevg eledfjf facewabout its foter side,d saidfshoulder 'having its outerl facelso' beveledpa olemountrespondilngly .beveled "faces, f' one 'fbeinjg on .:a vrevised fffsholider, fthe 'beveled 7faces A on the Y t-vvovrims beingwajdapted' tofsengage, lugsl en the shoulder 'fof-f the' 'demountbleriimfwhich vinterlock# in theI notches of rthe "sholder `of the l 'inner I"ri=m,l1 lips i iniltransverse wlinement #with "l said lugs f and Iadaptezd t'o `x"be pfxssed 1 through vrsaid ln-otches fand l to overhang the s; justblywattached i. toty the inner-side ifoce of the ffelly, ssaid rrin'g fha'v-ing notches 1to= Vcorv`respond `fon-cl register `with .Lt'hose in rthe sholi'der of' thei innergrim fondi through Which f ring .notches sajidf, projections :are passed,f=an'd fi-nwardly i facing wedges on said frng, 1 one ad] acent a toreach notch, 1and^ means to move tionsY in the demountbleiiim, sbstantially #as described.

In: testimonyy whereof?leziixfmyfsignature 'Vloresencez:ofi` two Witnesses -RO'SGOE C. KNQWILES. Witnesses ffNoMm l-Wnnsrn 'VMJ C. vPRIoKE'ifLx 'Gppiesnon thiszfpn'tent r-may fbefrbbtaind; for-Ave i'cets eachfrby -a'ddressing the flcommissionerflrtents,

` Washingtonginc. 

